Car anti-theft traffic police tips on eight major faults to share

    With the rapid increase of private cars, various services and equipment such as car beauty and car anti-theft are constantly developing, and there are more and more counterfeit and shoddy products. Regarding the anti-theft alarm, relevant comrades from the Automobile Rights Protection Center of Harbin Industrial and Commercial Bureau believe that to install a car anti-theft device, you must first choose a store with strength and good reputation. After shopping around, the store you choose must have the qualifications to operate and install anti-theft devices, as well as the legal business license of the enterprise, and even the qualification certificate issued by the public security organs. Don't choose some miscellaneous brands or unknown anti-theft device brands.
　　
　　Classification and function analysis of car anti-theft alarms
　　
　　Car anti-theft alarms not only have anti-theft alarm functions, but also can have remote control to start the trunk, remote control to open and close the doors, remote control to open and close the windows, remote control to start the engine, remote control to lock the engine, etc. No matter when and where, you can monitor your car by phone to give it the best protection. With the advancement of science and technology, in order to deal with the escalating stage of car theft, people have developed anti-theft devices with different structures.
　　
　　Mechanical anti-theft devices: mainly divided into two categories: steering wheel locks and gear locks. It mainly relies on locking the clutch, brake, accelerator or steering wheel, gear shift to achieve the purpose of anti-theft, but only prevents theft without alarming. Its advantages are low price and easy installation. The disadvantage is that the anti-theft is not thorough, it is troublesome to disassemble and assemble each time, and you have to find a place to put it when not in use. Sometimes car owners will install several mechanical anti-theft devices on their vehicles. According to industry insiders, this can deter car thieves to a certain extent or increase the possibility of thieves being discovered. The anti-theft performance of this type of product is extremely low, and it is rarely used alone on the market now.
　　
　　Electronic anti-theft device: In order to overcome the disadvantages of mechanical locks that only prevent theft but do not alarm, electronic alarm anti-theft devices came into being. It mainly relies on locking the ignition or starting to achieve the purpose of anti-theft, and also has anti-theft and sound alarm functions. The characteristics of remote control car anti-theft devices are that they can remotely control all the functions of the anti-theft device, which is reliable and convenient, and can be equipped with vibration detection door control protection and microwave or infrared probe functions. There are also two-way electronic anti-theft devices on the market. This kind of anti-theft device can not only remotely control the vehicle by the owner within a certain distance, but also transmit its own status to the owner, such as which side of the door is opened or the window glass is damaged. However, this kind of anti-theft device generally has false alarms, and it does not fundamentally solve the problem of vehicle loss. This kind of anti-theft device has a certain anti-theft function. When it exceeds the effective distance and is unattended, its anti-theft function will also be lost.
　　
　　Chip-type digital anti-theft device: It is mostly used for the original anti-theft device of the car. Although it solves the anti-decoding function of the second-generation anti-theft device, it still cannot get rid of the distance limitation. The thieves' means have been upgraded, so many cars equipped with original anti-theft devices have been stolen, including high-end cars such as BMW and Mercedes-Benz. There are also reports of thefts.
　　
　　Network anti-theft system: The full name of the GPS system is "Global Satellite Positioning System". It is mainly used for the navigation and positioning of the car and the auxiliary anti-theft function derived from it. Its advantage is that it can understand the location of each vehicle in the group fleet in real time for effective supervision. It is mainly used to control or locate the vehicle through the service center after the vehicle is stolen. It is a means of "chasing the thief" after the alarm occurs.
　　
　　The GSM network anti-theft system uses the GSM global mobile network to monitor the car 24 hours a day at unlimited distances, and can call the owner's mobile phone or phone to make a voice report within a few seconds of the alarm. The owner can immediately monitor, shout, and lock the vehicle through the incoming call. The system will automatically cut off the oil and circuits, making the car unable to start. It has a real "anti-theft" function, preventing theft before it happens, and fundamentally eliminating the possibility of car theft; after the robbery, the vehicle can be locked by phone and the lost car can be located and retrieved through the GSM network. The
　　
　　independent car anti-theft alarm has six major functions:
　　
　　1. Intelligent identification of the owner's identity! Super GPS positioning and car anti-theft alarm two-in-one system that can intelligently identify the owner's identity!
　　
　　2. GPS plus intelligent anti-theft alarm two-in-one system!
　　
　　3. Super hidden! If the car is stolen, the police may follow the thief wherever he goes! A thief steals your car and is caught immediately. If you don't tell the thief what happened, a top smart car thief may not be able to find the black box that betrayed it for several days. Who exposed his whereabouts? The highly camouflaged and concealed black box intelligent technology has created the myth that your car cannot be lost or stolen!
　　
　　4. Only one charge a month can achieve the positioning and anti-theft purpose that the owner wants to achieve! Super power-saving technology and super intelligent design create the world's unique car GPS anti-theft alarm!
　　
　　5. Installation is completed in 1 second! This system does not require any original car circuit to achieve positioning and anti-theft. The real technology in the era of the Internet of Things leads the innovation revolution!
　　
　　6. The owner does not need to carry a remote control to arm and disarm! Since the GPS ALARMSYSTEM can intelligently identify the owner's identity, then the driver no longer needs to carry a remote control to arm and disarm every time he drives!
　　
　　What are the common troubleshooting?

　　Example 1. Fault phenomenon: The remote control operation does not work. When pressing the function buttons of the remote control, the red LED indicator of the remote control does not light up. Cause analysis: This fault is mostly in the remote control itself, and there are several situations: (1) The battery is exhausted; (2) The positive and negative reeds of the battery are rusted or have poor contact; (3) The remote control is exposed to rain or soaked in water or oil. In this case, you can remove the circuit board, clean it with industrial alcohol, blow it dry with a household hair dryer or let it dry naturally before using it. 　Example 2. Fault phenomenon: The remote control distance is getting shorter and shorter. When transmitting signals, the brightness of the LED on the remote control becomes dim or flickers. Cause analysis: This phenomenon is mostly caused by insufficient battery power. Just replace the battery. In addition, it is recommended not to adjust or replace the components of the remote control by yourself to avoid causing greater losses. 　Example 3. Fault phenomenon: A function key on the remote control fails, and the LED indicator does not light up when the key is pressed. Cause analysis: The failure of a function key (other function keys are normal) is mostly caused by damage to the function key or desoldering of the key pin and the solder joint of the circuit board. The buttons of the remote control are mostly micro switches. When using them normally, you should use light force and pay attention to waterproof, drop-proof and heavy pressure. Example 4. Fault phenomenon: When the remote control is not in use, the LED indicator often lights up by itself, or as long as the battery is installed, the LED indicator will always light up, and there is no response when the remote control is operated. Cause analysis: The indicator often lights up by itself when no button is pressed on the remote control. Generally, the buttons of the remote control are mechanically damaged. The performance is that the buttons feel bad and have no elasticity. Just replace the buttons. For the jump code type remote control, there is no response when pressing the function keys of the remote control. After replacing the battery or reinstalling the battery, the LED indicator lights up for 20 to 40 seconds, and then there is no response. This shows that the button is short-circuited. If the feel is normal, you can use the multimeter R×1 gear to test each button on the road, and then replace the short-circuited button. 　Example 5. Fault phenomenon: The vehicle automatically turns off and enters the alarm state after driving for about 30 to 40 seconds. After the anti-theft function is released, the above situation is repeated during driving, and so on. Cause analysis: This phenomenon is caused by operating the remote control in the car, causing secondary automatic anti-theft. As long as the door is opened and closed again after pressing the anti-theft function release button, the problem can be solved. The remote control for the car anti-theft system is limited by its size, and the function buttons are generally no more than four. Therefore, each button is often assigned several functions. In a certain state, the same function key controls different functions, or a certain function is completed by multiple buttons. Special attention should be paid when using it. Example 6. Fault phenomenon: The vehicle is in anti-theft state, and the remote control fails to release the anti-theft function.

　　

　

        
　　
　
　　
　　
　　
　　
　　
　　
　　
　
　　
　　
　　
　　
　　
　　Cause analysis: The system in anti-theft state, due to the failure of the remote control or system host (mostly the host is the remote control receiving circuit failure), causes the anti-theft release failure (the remote control loses control of the system), the car direction lights (double jump lights) flash, the alarm horn often sounds, and the vehicle cannot start and drive. At this time, the anti-theft system can only be temporarily removed, which requires the user to pay attention to the general installation position of the anti-theft system host. If the location of the anti-theft device is not known, you can find the system host according to the LED indicator light, ultrasonic sensor probe or alarm horn and other components of the anti-theft system, and unplug the connector connecting the anti-theft system host and the vehicle. In addition, some remote control car anti-theft alarm system hosts are set with an emergency release function, so the use of the anti-theft device can be suspended without removing the system host.
　　
　　 Example 7. Fault phenomenon: The car anti-theft system works normally, the ignition motor runs normally, but the vehicle cannot start.
　　
　　 Cause analysis: This phenomenon may be caused by a fault in the alarm or the car's own electrical appliances. The judgment method is: short-circuit the two thick wires of the car anti-theft device accessory cut-off ignition relay (12V/30A, usually installed near the car key door). If the vehicle can start at this time, it means that the anti-theft system is faulty, and most of the relays are damaged. If the vehicle still cannot start after short-circuiting the two thick wires of the cut-off ignition relay, it means that the car's own circuit is faulty. In addition, when the vehicle encounters a bumpy road during driving, it is easy to stall or stall instantly. Pay special attention to whether the normally closed contacts of the cut-off ignition relay have poor contact or loose wiring.
　　
　　Example 8. Fault phenomenon: When the turn signal on one side of the car is turned on, the other side also lights up.
　　
　　 Cause analysis: This fault is the breakdown of the diode that controls the voltage output of the car's turn signal (double jump light) of the anti-theft system (some models have these two diodes inside the host, and some are attached to the connection line). Replacing the same type of diode can eliminate the fault.